昏迷 (hūn mí): Stupor (Verb) — Meaning & Stroke Order

Could it be that he is still in a coma to this day, with no signs of improvement?

He did not fall into a coma because of that accident; he only suffered some superficial injuries.

I heard Old Wang suddenly fell into a coma and was taken to the hospital. Let's go see him after work.

Although he briefly fell into a coma due to a high fever, he is now fine after timely treatment.